A small, cylindrical glass vial with a cork stopper, containing a swirling, luminescent green liquid. The glass is slightly frosted with a subtle, uneven texture to suggest hand-blown craftsmanship. The liquid inside emits a faint glow, casting eerie green reflections on nearby surfaces, with occasional bubbles rising slowly, indicating its volatile nature. The vial is sealed with a wax imprint, possibly denoting its origin or potency.